Wow, this is really nice. And each time I change some parameters, I get 
something different but also beautiful. Thanks for sharing this.

Thibaut



> Ok, you asked for it! :) Here's a little pattern I whipped up just now 
> in POV:
> 
> // Code
> // render with +w500 +h500
> 
> global_settings{assumed_gamma 2.2}
> 
> #default{finish{ambient 1}}
> 
> camera{
>  orthographic
>  right x*2 up y*2
>  location -z*100 look_at 0
> }
> 
> #declare native_motif=
> pigment{
>  gradient y triangle_wave
>  #declare V=0;
>  #while(V<1)
>   translate y*.75
>   rotate z*45.2
>   //rotate -z*45.1
>   scale .98
>   warp{repeat x*5 flip x}
>   #declare V=V+1/100;
>  #end
>  scale .1
> }
> 
> plane{z,-1
>  pigment{
>   native_motif
>   color_map{[0 rgb 0][.5 rgb<.5,.3,.1>][1 rgb 1]}
>  }
> }
> 
> // End Code
>

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